diff --git a/lib/py/Makefile.am b/lib/py/Makefile.am
index d3e55fe..a504b5c 100755
--- a/lib/py/Makefile.am
+++ b/lib/py/Makefile.am
@@ -20,23 +20,23 @@
 DESTDIR ?= /
 
 all-local:
-    $(PYTHON) setup.py build
+	$(PYTHON) setup.py build
 
 # We're ignoring prefix here because site-packages seems to be
 # the equivalent of /usr/local/lib in Python land.
 # Old version (can't put inline because it's not portable).
 #$(PYTHON) setup.py install --prefix=$(prefix) --root=$(DESTDIR) $(PYTHON_SETUPUTIL_ARGS)
 install-exec-hook:
-    $(PYTHON) setup.py install --root=$(DESTDIR) --prefix=$(PY_PREFIX) $(PYTHON_SETUPUTIL_ARGS)
+	$(PYTHON) setup.py install --root=$(DESTDIR) --prefix=$(PY_PREFIX) $(PYTHON_SETUPUTIL_ARGS)
 
 clean-local:
-    $(RM) -r build
+	$(RM) -r build
 
 check-local: all
 
 EXTRA_DIST = \
-    compat \
-    setup.py \
-    setup.cfg \
-    src \
-    README.md
+	compat \
+	setup.py \
+	setup.cfg \
+	src \
+	README.md